What kinds of fish are there in the ocean?

Question 1: What are the fish in the sea, including yellow croaker, hairtail, Spanish mackerel, squid, cuttlefish, pike, pomfret, perch, eel, salmon, grouper and horsehead? , Damengzai, Red Pomelo, Fine Scales, Green Forbidden, Oil Cone, Fire Point, Chicken Fish, Lian Jian, Red Fish, Head Bass, Golden Y, Tooth Point, Fire Point, Clam Clam, Star Bass, Yellow Licang, Spanish mackerel, Hairtail, Big Yellow Flower, Small Yellow Flower, Red Cargill, Thin Wolf, Red Crocodile.

Question 2: What kinds of fish are there in the ocean and how do they prey? The first is the anti-stress ability of deep-sea fish, and their physiological functions have changed greatly to adapt to the environment. These changes are reflected in the muscles and bones of deep-sea fish. Due to the huge water pressure in the deep sea environment, the bones of fish become very thin; But also easy to bend; Muscle tissue becomes particularly flexible and fiber tissue becomes surprisingly fine. More interestingly, the fish skin tissue becomes only a thin layer, which can make the physiological tissue in the fish full of water and keep the balance between internal and external pressure. This is why deep-sea fish will not be crushed to death under such great pressure.

Secondly, in order to adapt to the dark environment of the deep sea, fish living in the deep sea have to identify their own species, find mates and feed in extremely dim light, which requires them to have the ability to shine. Different fish give off different lights; With these lights, information can be transmitted to each other on the same fish, and other fish can be lured into being victims or used to get rid of predators. Therefore, luminescence is one of the important means for deep-sea fish to survive.

Moreover, the eyes of deep-sea fish have become very strange. Generally, the eyes of fish are mostly on both sides of the head, while those of fish living in the deep sea are on the back of the head. Seen from the front, the fish's two big eye frames are like two upright light bulbs. From top to bottom, the eyes are like two big circles, occupying the "fortress" part of the head. More interestingly, this fish eye can move up and down, left and right, the eyeball structure is similar to a telescope, and the focal length can be adjusted freely. The peculiar eye structure is almost a physiological feature of deep-sea fish.

◆ Survival of deep-sea fish

In the depths of the ocean, there is no light, the water is cold and there is little food, but there are still many fish living there. What do they live on? It turns out that the fish in the deep sea are generally very small, and they can survive with a little food. Some even eat it once every few months. Deep-sea fish have a strange shape. For example, there is a deep-sea fish called underwater fisherman. There is a fishing rod and a glowing bait on the top of his forehead. Other fish swam to eat, only to be swallowed by the underwater fisherman.

Question 3: What fish in the sea can eat hairtail, herring, herring, salmon, perch, yellow croaker, milk fish, pike, mullet, cod, tuna, sea carp, flounder, halibut, swordfish, J fish, mackerel and North Atlantic cod? , big sprout, red pomelo, fine scale, green, oil cone, fire spot, chicken fish, Lian Jian, red fish, head bass, gold Y, dental plaque, fire spot, mussel, big star bass, Huanglicang and Sandao.

Question 4: What is the smallest fish in the ocean? The smallest fish found so far is distributed in Pacific waters. The scientific name is

Schindler fish Schindler fish

The picture below shows Schindler's bacteria (giant salamander).

Its slender shape looks like a bug. They have no fins, no teeth and no scales. The body is transparent except for the eyes, which have no pigmentation. Female fish lay eggs at 2 ~ 4 weeks old. "Fat giant salamander" has a life span of about 2 months, so it is called "the smallest fish in the world".

Question 5: What kinds of fish are there in the ocean? At present, there are 265,438+0,723 species of fish, including about 6,543,380+0.2 million species of marine fish. There are 3 187 species of marine fish in China. These fish are generally classified into three categories.

1. Cyclostomata is the most primitive fish. It has no mandible, so it is also called jaw. The body surface is scaleless, slender, eel-shaped, and the bones are completely cartilage. No lateral fins, no shoulder straps and belts, lifelong spinal cord, meta-vertebral body. It has a single unpaired nostril, and the gills formed by endoderm are in the muscle sac and open to the outside.

The second is cartilaginous fishes. Endoskeleton is completely osteogenic, but it is often strengthened by calcification. It consists of any real bone tissue: the body surface is covered with scales, spines or scales. There are no seams on the skull. There is a branchial fissure on each side of the head, which opens outward. The intestine is very short, and there is a spiral valve inside. No fat. Male mating animals with specialized ventral fins are called flippers. In vivo fertilization. Ovoviparous, viviparous or viviparous, with curved tail, cartilaginous fish are widely distributed in the ocean, but mainly in low latitude waters.

The third category is bony fish. It is an advanced fish and the most prosperous class at present. The endoskeleton ossifies, the head floats and there are often membranous bones, and there are bone seams between the bones. The body surface is covered with hard scales or bone scales, or * * * without scales. The outer branchial foramen 1 pair, the branchial septum degenerates, the branchial filaments are supported by double rows of branchial strips, usually with fatty multi-segmental fins, and there is no spiral flap in the intestine. Some fish have dorsal ribs and abdominal ribs, and their otoliths are very strong. Usually in vitro fertilization, no cloaca. There are about 18 000 species of teleost in the world.

The body types of marine fish can be generally divided into: ① Torpedo-type, which lives in middle waters and is best at swimming, such as mackerel, mullet and tuna. ② Arrow shape. Similar to torpedo type, but long, strange fins move backwards, inhabit surface water, and are good at swimming, such as pike and jaw needle fish. ③ lateral flat type. The height of the dorsal axis of this fish increases, and the left and right sides are extremely flat. It can be divided into grouper type, mola type and flounder type, which inhabit near the bottom and bottom respectively. ④ Snake type. This kind of fish has a slender body and a round cross section, and generally inhabits marine benthos, such as eels and sea dragons. ⑤ Belt type. The body height is extended to a lateral flat type, and it is not good at swimming, such as hairtail and yellow hairtail. ⑥ spherical. Almost all fish of this size are spherical, and their caudal fins are generally underdeveloped, such as boxes and some round-finned fish. ⑦ vertical and flat. The height of the dorsal abdominal axis of this fish is reduced, and its body shape is flat, such as various rays and cK.

Fin is the main movement and balance organ of fish. Pairs are called lateral fins, including pectoral fins and ventral fins; The unpaired ones are called odd fins, including dorsal fin, anal fin and caudal fin. Tail fin is born in the tail of fish and has the function of turning and pushing. Generally, it can be divided into round tail (the upper and lower leaves are equal in size, such as mackerel and tuna), curved tail (the upper leaves are more developed than the lower leaves, which is helpful for upward movement, such as sharks) and straight tail (the lower leaves are more developed than the upper leaves, which is helpful for downward movement, such as flying fish).

There are three ways of fish reproduction, namely oviparous, ovoviviparous and viviparous. Most fish are oviparous. Egg-laying fish usually discharge mature eggs directly into water for in vitro fertilization to complete the whole development process, but a few fish (such as some sharks) are fertilized in vivo and fertilized eggs are still developing in vitro. Oviposition fish are generally fertilized by eggs, and fertilized eggs develop in the body, but the nutrition of embryos depends on their own yolk supply, which has nothing to do with the mother, such as white-spotted star shark, white-spotted horn shark, Japanese partial shark, Xu-pressure plough ray, sea crucian carp and black (fish king). Viviparous fish are generally fertilized by eggs in the mother, and the embryos formed by fertilized eggs have blood circulation contact with the mother. Its nutrition comes not only from the yolk of the body, but also from the supply of the mother, such as the gray star shark. The spawning amount of fish is much higher than that of terrestrial vertebrates, which varies greatly, from several large eggs (such as many sharks) to 300 million floating eggs (such as molas). Generally speaking, fish that don't protect their eggs after laying eggs have a large amount of eggs, such as red snapper, which produces about 6.5438+0.5 million, and eel produces 700-65438+0.5 million. After spawning, the fish that protect the eggs lay less eggs, such as dozens to hundreds of eggs in the hippocampus.

The growth rate and individual size of fish vary greatly at each stage. The research shows that the smallest individual fish is goby, with a body length of only 7.5- 1 1.5 mm; The largest can reach 20 meters, such as whale sharks. The fastest growing period of fish is usually before sexual maturity. After that, most of the bait eaten by fish is used for the maturation of sexual products and the storage of fat, and only a small part is used for the length. & gt

Question 6: What kinds of fish in the ocean are inedible? As far as fish poisoning is concerned, it can be roughly divided into seven categories.

I. Botox fish

The so-called "fish poisoned by Botox" means that its fish is poisonous and must not be eaten. It was reported as early as16th century. These botulism fish contain "ciguatoxin" in their muscles and internal organs, which will cause poisoning after eating, which is called "botulism fish poisoning".

Botulinum fish are widely distributed in tropical and subtropical waters of the Pacific Ocean, Indian Ocean and Atlantic Ocean, with various species and different living habits. Some live near coral reefs, some live at the bottom of the sea, and some live in the upper ocean.

According to preliminary statistics, there are more than 300 species of botulism fish, and there are also 30 species in China, mainly distributed in the coastal areas of Guangdong and Hainan, and a few species are also found in the southern part of the East China Sea and Taiwan Province Province.

The appearance of botulism fish is not much different from that of common edible fish. Moreover, some species of families and genera are mostly edible fish, and a few are poisonous, which is difficult to distinguish and easy to be poisoned after eating. The reasons for eating Botox fish are complicated. Some fish are non-toxic and edible in one area, but toxic and inedible in another area. There are also some species that are not poisonous at ordinary times, but they are poisonous in the breeding season.

After eating botulism fish, symptoms usually appear within 1 ~ 6 hours after eating. First, there is a tingling sensation in the lips, tongue and throat, and then there is paralysis. Some cases have symptoms such as nausea, vomiting, dry mouth, metallic taste in the mouth, spasmodic abdominal pain, diarrhea, etc., and then stiffness of the mouth, cheeks and jaw muscles occurs. Common symptoms include headache, anxiety, joint pain, nervousness, dizziness, insomnia, pallor, chills, fever, sweating, rapid and weak pulse, muscle pain and inability to walk. Especially the wrist and feet feel extremely painful, blurred vision, dilated pupils and so on. Skin itching, erythema, water sores, extensive peeling of hands and feet, and even ulcers, hair and nails falling off. In severe poisoning, the limbs feel abnormal, and the cold and heat turn upside down (cold feeling burning, warm feeling cold), and then the whole body muscle movement disorder, spasm, convulsion, dysphonia, coma, until respiratory paralysis and death. There is no specific medicine that can be cured at present. Its types are:

Yellow-edged naked-breasted eel (Moraceae) is similar in appearance to Monopterus albus, but much fatter, with a body length of1.5m. The cloth is yellowish brown with dark brown spots. It is a large-scale warm-water fish, distributed in Taiwan Province Province and Hainan Province, and commonly found in coral reefs. It is a fierce carnivorous fish, which feeds on fish and shrimp. Meat is poisonous and highly toxic. As a representative of fish poisoned by Botox, there have been reports of accidental poisoning in Taiwan Province Province.

In the same family as it, there is also the spotted naked-breasted eel. Widely distributed in coastal areas of Guangdong, Hainan and Taiwan Province. There have been cases of death after eating only 200 grams of fish, with severe poisoning symptoms, obvious spasm and paralysis and high mortality. There are also reports of poisoning caused by eating this fish by mistake in Taiwan Province Province.

There are also spotted naked-breasted eels (Moravidae) and undulated naked-breasted eels (Moravidae) along the coast of Hainan Province, commonly known as "Moravidae". There are reports of accidental poisoning in Taiwan Province Province.

Large carnivorous sturgeon is produced in the coastal areas of Taiwan Province Province and Hainan Province, and can be caught by tuna longline fishing. It's 1.8 meters long, likes clustering, gluttonous and easy to catch. Its meat is poisonous, especially during the breeding season from May to September. It usually takes 30 minutes to 2 hours to attack. Facial paralysis around the mouth, numbness of limbs and whole body, drunkenness. In severe cases, you will drool, have difficulty swallowing, have unclear speech and have difficulty standing and walking. However, in general, 1- 2 days will heal itself, and it will take several days to recover seriously. It has been reported that poisoning was caused by eating this fish by mistake in Taiwan Province Province.

Spotted nine-spined perch of the same family as perch. The body is oval, slightly slender, flat on the side, dull on the back and abdomen, dark brown, with nine spines on the dorsal fin, hence the name. Produced in the coastal area of Hainan Province, China, the meat is 50cm long and poisonous. Mild symptoms include vomiting, diarrhea, numbness of tongue and mouth, blisters, trembling and pain in hands and feet.

Also in the same family is the grouper, which is a carnivorous fish distributed in the shallow sea bottom within 60 meters south of Hainan. Its body length can reach 1.2 meters, and its meat is toxic and slightly toxic. Tilia amurensis, commonly known as yellow tail, blue-green or brown body, pale abdomen and shallow caudal fin. & gt

Question 7: How many kinds of fish are there in the sea? What are their names? There are 265,438+0,723 species of fish, including about 654,380+0.2 million species of marine fish. There are 3 187 species of marine fish in China. These fish are generally classified into three categories. 1. Cyclostomata is the most primitive fish. It has no mandible, so it is also called jaw. The body surface is scaleless, slender, eel-shaped, and the bones are completely cartilage. No lateral fins, no shoulder straps and belts, lifelong spinal cord, meta-vertebral body. It has a single unpaired nostril, and the gills formed by endoderm are in the muscle sac and open to the outside. The second is cartilaginous fishes. Endoskeleton is completely osteogenic, but it is often strengthened by calcification. It consists of any real bone tissue: the body surface is covered with scales, spines or scales. There are no seams on the skull. There is a branchial fissure on each side of the head, which opens outward. The intestine is very short, and there is a spiral valve inside. No fat. Males have a special device for mating with the inside of the ventral fin, which is called flipper foot. In vivo fertilization. Ovoviparous, viviparous or viviparous, with curved tail, cartilaginous fish are widely distributed in the ocean, but mainly in low latitude waters. The third category is bony fish. It is an advanced fish and the most prosperous class at present. The endoskeleton ossifies, the head floats and there are often membranous bones, and there are bone seams between the bones. The body surface is covered with hard scales or bone scales, or * * * without scales. External branchial foramen 1 pair, branchial septum degenerates, branchial filaments are supported by double rows of branchial strips, usually with fatty multi-segmental fins, and there is no spiral flap in the intestine. Some fish have dorsal ribs and abdominal ribs, and their otoliths are very strong. Usually in vitro fertilization, no cloaca. There are about 18 000 species of teleost in the world.

Question 8: What kinds of fish are there in the sea? Sharks, hairtail, grouper, yellow croaker, cuttlefish, lantern fish, flounder, clown fish, swallow fish, octopus, lionfish, etc.